Vortex valve flow controller in VAV systems
AssigneeHoneywell Limited Honeywell Limitée
InventorsGordon M. Bragg, Richard G. Carothers, Kenneth A. MacLeod, Marvin D. Nelson
Life of this patent
Estimating the term…
Abstract
In variable air volume systems of buildings, a vortex valve is used for varying the volume of the air moving through the system.
Claims15
An air flow control system comprising:
- vortex valve means having an inlet for receiving supply air from a supply air duct, an outlet for discharging air to a discharge air duct, and a control port for receiving a vortex control signal, said vortex valve means controlling the flow of said discharge air by controlling the flow of air from said inlet to said outlet in response to said vortex control signal;
- and,
- control means including means responsive to a physical condition of air for supplying said vortex control signal to said control port of said vortex valve means for causing said vortex valve means to control the flow of said discharge air in response to said physical condition and said control means further including compensation means for controlling said control means to cause said vortex valve means to maintain said flow of said discharge air substantially unaffected by changes in flow of supply air.
In a fan or ejector system having a fan or ejector for moving air from one location of an enclosure to another location through at least one duct, an air flow control arrangement comprising:
- vortex valve means positioned in said duct for controlling air moving through said duct, said vortex valve means having an inlet for receiving supply air moving through said duct upstream of said vortex valve means, an outlet for discharging discharge air to said duct downstream of said vortex valve means, and a control port for receiving a vortex control signal, said vortex valve means controlling the flow of said discharge air by controlling the flow of air from said inlet to said outlet in response to said vortex control signal;
- and,
- control means including means responsive to a physical condition of air for supplying said vortex control signal to said control port of said vortex valve means for causing said vortex valve means to control the flow of said discharge air in response to said physical condition and said control means further including compensation means for causing said vortex valve means to maintain said flow of said discharge air substantially unaffected by changes in flow of supply air.
In a fan or ejector system having a fan or ejector for moving air from one location of an enclosure to another location through at least one duct, a temperature control system for controlling the temperature of air in a space comprising:
- vortex valve means for controlling air moving through said duct, said vortex valve means having an inlet for receiving supply air moving through said duct upstream of said vortex valve means, an outlet for discharging discharge air to said duct downstream of said vortex valve means, said discharge air being supplied to a space, and a control port for receiving a vortex control signal, said vortex valve means controlling the flow of said discharge air by controlling the flow of air from said inlet to said outlet in response to said vortex control signal;
- and,
- control means including means responsive to said temperature for supplying said vortex control signal to said control port of said vortex valve means for causing said vortex valve means to control the flow of said discharge air in response to said temperature and said control means further including compensation means for causing said vortex valve means to maintain said flow of said discharge air substantially unaffected by changes in flow of supply air.
Dependencies are inferred from the claim text.